One planned US coal-fired power plant already cancelled as Environmental Protection Agency announces overhaul of coal policy
Water rationing on the cards as part of wide-ranging plan to tackle three-year drought
Udall cousins propose binding renewables target for US energy mix
BusinessGreen.com takes the microscope to the environmental spending in President Obama's wide-ranging economic stimulus package
Climate change will be near the top of the agenda as US Secretary of State embarks on first foreign tour
One of the world's largest ever solar deals could see seven solar thermal plants provide enough power for almost a million homes
But only if entire country emulates performance of the 10 most-efficient states
But reign could be short-lived with China doubling capacity year-on-year
New US energy chief warns climate change droughts could destroy California's agricultural industry, as scientist predicts sea level rises could be higher than expected
Project to roll out smart meters capable of providing energy use data four times an hour moves forward